I HAD TUBAL LIGATION DONE 7 YEARS AGO DURING A C-SECTION, MY PERIODS HAVE ALWAYS BEEN REGULAR AND ON TIME. 2 MONTHS AGO GOT A SHARP PAIN IN MY PELVIS, WHICH CAME AND WENT THEN I HAD A SUDDEN UNEXPECTED BLEED, AND LOST A HUGE AMOUNT OF TISSUE. HAS THE TUBAL FAILED?